TPU3 ROM Functions
MPC561/MPC563 Reference Manual, Rev. 1.2
D-30
Freescale Semiconductor
D.11
Multi TPU (MULTI)
The MULTI function consists of four sub-functions:
FRINC:
A free running incrementing 32-bit counter. The counter frequency is determined
by a variable parameter ‘TICKS’ and either TCR1 or TCR2 can be used as a
timebase. This function runs continuously without service from the RCPU and can
only be stopped by setting its priority to zero.
FRDEC:
A free running 32-bit decrementing counter, similar to FRINC but with the
additional feature that it can be programmed to generate an interrupt when the
counter reaches zero.
PWM_IN:
This function analyses a PWM-input signal by measuring a selectable number of
periods. It adds both periods as well as high-time for the selected number of
periods.
SPEED:
This function measures periods from a defined edge to the next defined edge. The
measurement is not specified for a number of periods, but is continuous. If the
result is read regularly, the function measures the time for the number of periods
detected between the two reads. In other words, the function averages the periods
between two consecutive reads. This function uses TCR1 for the timebase.
This function is available only on revision D and later of the MPC561 and is not available on revision B
and earlier of the MPC563.
show all of the host interface areas for the MULTI function.
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...